| /* |
| * Copyright (c) 2012 Google Inc. |
| * |
| * All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse |
| * Public License v1.0 which accompanies this distribution, and is available at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| */ |
| package com.google.eclipse.protobuf.ui.builder.protoc.command; |
| |
| import static com.google.common.collect.Lists.newArrayList; |
| import static java.io.File.separator; |
| import static org.eclipse.xtext.util.Strings.*; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.eclipse.protobuf.ui.preferences.compiler.core.CompilerPreferences; |
| |
| /** |
| * @author alruiz@google.com (Alex Ruiz) |
| */ |
| class DescriptorPathProtocOption implements ProtocOption { |
| private final CompilerPreferences preferences; |
| private final String descriptorFqn; |
| |
| private boolean initialized; |
| private String descriptorPath; |
| |
| DescriptorPathProtocOption(CompilerPreferences preferences) { |
| this(preferences, separator); |
| } |
| |
| @VisibleForTesting DescriptorPathProtocOption(CompilerPreferences preferences, String pathSeparator) { |
| this.preferences = preferences; |
| descriptorFqn = concat(pathSeparator, newArrayList("", "google", "protobuf", "descriptor.proto")); |
| } |
| |
| @Override public void appendOptionToCommand(ProtocCommand command) { |
| if (!initialized) { |
| initialize(); |
| } |
| if (!isEmpty(descriptorPath)) { |
| command.appendOption("proto_path", descriptorPath); |
| } |
| } |
| |
| private void initialize() { |
| initialized = true; |
| String fullPath = preferences.descriptorPath().getValue(); |
| if (!isEmpty(fullPath)) { |
| int indexOfDescriptorFqn = fullPath.indexOf(descriptorFqn); |
| if (indexOfDescriptorFqn == -1) { |
| String format = "Path '%s' does not contain '%s'"; |
| throw new IllegalArgumentException(String.format(format, fullPath, descriptorFqn)); |
| } |
| descriptorPath = fullPath.substring(0, indexOfDescriptorFqn); |
| } |
| } |
| } |